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BranchCommit messageAuthorAge
archive/unc-master-3.0P-FP: fix BUG_ON releated to priority inheritanceBjoern Brandenburg13 years
archived-2013.1uncachedev: mmap memory that is not cached by CPUsGlenn Elliott12 years
archived-private-masterMerge branch 'wip-2.6.34' into old-private-masterAndrea Bastoni15 years
archived-semi-partMerge branch 'wip-semi-part' of ssh://cvs/cvs/proj/litmus/repo/litmus2010 int...Andrea Bastoni15 years
demoFurther refinementsJonathan Herman14 years
ecrts-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
ecrts14-pgm-finalMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
gpusync-rtss12Final GPUSync implementation.Glenn Elliott12 years
gpusync/stagingRename IKGLP R2DGLP.Glenn Elliott12 years
linux-tipMerge branch 'slab/urgent' of git://git.kernel.org/pub/scm/linux/kernel/git/p...Linus Torvalds15 years
litmus2008-patch-seriesadd i386 feather-trace implementationBjoern B. Brandenburg16 years
masterPSN-EDF: use inferred_sporadic_job_release_atBjoern Brandenburg9 years
pgmmake it compileGlenn Elliott12 years
prop/litmus-signalsInfrastructure for Litmus signals.Glenn Elliott13 years
prop/robust-tie-breakFixed bug in edf_higher_prio().Glenn Elliott13 years
stagingFix tracepoint compilation errorFelipe Cerqueira13 years
test9/23/2016Namhoon Kim9 years
tracing-develTest kernel tracing events capabilitiesAndrea Bastoni16 years
v2.6.34-with-arm-patchessmsc911x: Add spinlocks around registers accessCatalin Marinas15 years
v2015.1Add ARM syscall def for get_current_budgetBjoern Brandenburg10 years
wip-2011.2-bbbLitmus core: simplify np-section protocolBjoern B. Brandenburg14 years
wip-2011.2-bbb-traceRefactor sched_trace_log_message() -> debug_trace_log_message()Andrea Bastoni14 years
wip-2012.3-gpuSOBLIV draining support for C-EDF.Glenn Elliott13 years
wip-2012.3-gpu-preportpick up last C-RM fileGlenn Elliott12 years
wip-2012.3-gpu-rtss13Fix critical bug in GPU tracker.Glenn Elliott12 years
wip-2012.3-gpu-sobliv-budget-w-ksharkProper sobliv draining and many bug fixes.Glenn Elliott12 years
wip-aedzl-finalMake it easier to compile AEDZL interfaces in liblitmus.Glenn Elliott15 years
wip-aedzl-revisedAdd sched_trace data for Apative EDZLGlenn Elliott15 years
wip-arbit-deadlineFix compilation bug.Glenn Elliott13 years
wip-aux-tasksDescription of refined aux task inheritance.Glenn Elliott13 years
wip-bbbGSN-EDF & Core: improve debug TRACE'ing for NP sectionsBjoern B. Brandenburg14 years
wip-bbb-prio-donuse correct timestampBjoern B. Brandenburg14 years
wip-better-breakImplement hash-based EDF tie-breaking.Glenn Elliott13 years
wip-binary-heapMake C-EDF work with simplified binheap_deleteGlenn Elliott14 years
wip-budgetAdded support for choices in budget policy enforcement.Glenn Elliott15 years
wip-colorSummarize schedulability with final recordJonathan Herman13 years
wip-color-jlhsched_color: Fixed two bugs causing crashing on experiment restart and a rare...Jonathan Herman13 years
wip-d10-hz1000Enable HZ=1000 on District 10Bjoern B. Brandenburg15 years
wip-default-clusteringFeature: Make default C-EDF clustering compile-time configurable.Glenn Elliott15 years
wip-dissipation-jericksoUpdate from 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-dissipation2-jericksoUpdate 2.6.36 to 2.6.36.4Jeremy Erickson11 years
wip-ecrts14-pgmMerge branch 'wip-ecrts14-pgm' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus-r...Glenn Elliott12 years
wip-edf-hsblast tested versionJonathan Herman14 years
wip-edf-osLookup table EDF-osJeremy Erickson12 years
wip-edf-tie-breakMerge branch 'wip-edf-tie-break' of ssh://rtsrv.cs.unc.edu/home/litmus/litmus...Glenn Elliott13 years
wip-edzl-critiqueUse hr_timer's active checks instead of having own flag.Glenn Elliott15 years
wip-edzl-finalImplementation of the EDZL scheduler.Glenn Elliott15 years
wip-edzl-revisedClean up comments.Glenn Elliott15 years
wip-eventsAdded support for tracing arbitrary actions.Jonathan Herman15 years
wip-extra-debugDBG: add additional tracingBjoern B. Brandenburg15 years
wip-fix-switch-jericksoAttempt to fix race condition with plugin switchingJeremy Erickson15 years
wip-fix3sched: show length of runqueue clock deactivation in /proc/sched_debugBjoern B. Brandenburg15 years
wip-fmlp-dequeueImprove FMLP queue management.Glenn Elliott15 years
wip-ft-irq-flagFeather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-gpu-cleanupEnable sched_trace log injection from userspaceGlenn Elliott13 years
wip-gpu-interruptsRemove option for threading of all softirqs.Glenn Elliott14 years
wip-gpu-rtas12Generalized GPU cost predictors + EWMA. (untested)Glenn Elliott13 years
wip-gpu-rtss12Final GPUSync implementation.Glenn Elliott13 years
wip-gpu-rtss12-srpexperimental changes to support GPUs under SRPGlenn Elliott13 years
wip-gpusync-mergeCleanup priority tracking for budget enforcement.Glenn Elliott12 years
wip-ikglpMove RSM and IKGLP imp. to own .c filesGlenn Elliott13 years
wip-k-fmlpMerge branch 'mpi-master' into wip-k-fmlpGlenn Elliott14 years
wip-kernel-coloringAdded recolor syscallNamhoon Kim8 years
wip-kernthreadsKludge work-queue processing into klitirqd.Glenn Elliott15 years
wip-klmirqd-to-auxAllow klmirqd threads to be given names.Glenn Elliott13 years
wip-ksharkMerge branch 'mpi-staging' into wip-ksharkJonathan Herman13 years
wip-litmus-3.2Merge commit 'v3.2' into litmus-stagingAndrea Bastoni13 years
wip-litmus2011.2Cleanup: Coding conformance for affinity stuff.Glenn Elliott14 years
wip-litmus3.0-2011.2Feather-Trace: keep track of interrupt-related interference.Bjoern B. Brandenburg14 years
wip-master-2.6.33-rtAvoid deadlock when switching task policy to BACKGROUND (ugly)Andrea Bastoni15 years
wip-mcRemoved ARM-specific hacks which disabled less common mixed-criticality featu...Jonathan Herman13 years
wip-mc-bipasaMC-EDF addedbipasa chattopadhyay13 years
wip-mc-jericksoSplit C/D queuesJeremy Erickson15 years
wip-mc2-cache-slackManually patched mc^2 related codeMing Yang10 years
wip-mcrit-maccosmeticMac Mollison15 years
wip-merge-3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-merge-v3.0Prevent Linux to send IPI and queue tasks on remote CPUs.Andrea Bastoni14 years
wip-migration-affinityNULL affinity dereference in C-EDF.Glenn Elliott14 years
wip-mmap-uncacheshare branch with othersGlenn Elliott13 years
wip-modechangeRTSS 2017 submissionNamhoon Kim8 years
wip-nested-lockingAppears to be working.Bryan Ward12 years
wip-omlp-gedfFirst implementation of G-OMLP.Glenn Elliott15 years
wip-paiSome cleanup of PAIGlenn Elliott14 years
wip-percore-lib9/21/2016Namhoon Kim9 years
wip-performanceCONFIG_DONT_PREEMPT_ON_TIE: Don't preeempt a scheduled task on priority tie.Glenn Elliott14 years
wip-pgmAdd PGM support to C-FLGlenn Elliott12 years
wip-pgm-splitFirst draft of C-FL-splitNamhoon Kim12 years
wip-pm-ovdAdd preemption-and-migration overhead tracing supportAndrea Bastoni15 years
wip-prio-inhP-EDF updated to use the generic pi framework.Glenn Elliott15 years
wip-prioq-dglBUG FIX: Support DGLs with PRIOQ_MUTEXGlenn Elliott13 years
wip-refactored-gedfGeneralizd architecture for GEDF-style scheduelrs to reduce code redundancy.Glenn Elliott15 years
wip-release-master-fixbugfix: release master CPU must signal task was pickedBjoern B. Brandenburg14 years
wip-robust-tie-breakEDF priority tie-breaks.Glenn Elliott13 years
wip-rt-ksharkMove task time accounting into the complete_job method.Jonathan Herman13 years
wip-rtas12-pgmScheduling of PGM jobs.Glenn Elliott13 years
wip-semi-partFix compile error with newer GCCJeremy Erickson12 years
wip-semi-part-edfos-jericksoUse initial CPU set by clientJeremy Erickson12 years
wip-shared-libTODO: Fix condition checks in replicate_page_move_mapping()Namhoon Kim9 years
wip-shared-lib2RTAS 2017 Submission ver.Namhoon Kim9 years
wip-shared-memInitial commit for shared libraryNamhoon Kim9 years
wip-splitting-jericksoFix release behaviorJeremy Erickson13 years
wip-splitting-omlp-jericksoBjoern's Dissertation Code with Priority DonationJeremy Erickson13 years
wip-stage-binheapAn efficient binary heap implementation.Glenn Elliott13 years
wip-sun-portDynamic memory allocation and clean exit for FeatherTraceChristopher Kenna15 years
wip-timer-tracebugfix: C-EDF, clear scheduled field of the correct CPU upon task_exitAndrea Bastoni15 years
wip-tracepointsAdd kernel-style events for sched_trace_XXX() functionsAndrea Bastoni14 years
 
TagDownloadAuthorAge
2015.1commit 8e51b37822...Bjoern Brandenburg10 years
2013.1commit bcaacec1ca...Glenn Elliott12 years
2012.3commit c158b5fbe4...Jonathan Herman13 years
2012.2commit b53c479a0f...Glenn Elliott13 years
2012.1commit 83b11ea1c6...Bjoern B. Brandenburg14 years
rtas12-mc-beta-expcommit 8e236ee20f...Christopher Kenna14 years
2011.1commit d11808b5c6...Christopher Kenna15 years
v2.6.37-rc4commit e8a7e48bb2...Linus Torvalds15 years
v2.6.37-rc3commit 3561d43fd2...Linus Torvalds15 years
v2.6.37-rc2commit e53beacd23...Linus Torvalds15 years
v2.6.37-rc1commit c8ddb2713c...Linus Torvalds15 years
v2.6.36commit f6f94e2ab1...Linus Torvalds15 years
2010.2commit 5c5456402d...Bjoern B. Brandenburg15 years
v2.6.36-rc8commit cd07202cc8...Linus Torvalds15 years
v2.6.36-rc7commit cb655d0f3d...Linus Torvalds15 years
v2.6.36-rc6commit 899611ee7d...Linus Torvalds15 years
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2010.1commit 7c1ff4c544...Andrea Bastoni15 years
v2.6.34commit e40152ee1e...Linus Torvalds15 years
v2.6.33.4commit 4640b4e7d9...Greg Kroah-Hartman15 years
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v2.6.15-rc3commit 624f54be20...Linus Torvalds20 years
v2.6.15-rc2commit 3bedff1d73...Linus Torvalds20 years
v2.6.15-rc1commit cd52d1ee9a...Linus Torvalds20 years
v2.6.14commit 741b2252a5...Linus Torvalds20 years
v2.6.14-rc5commit 93918e9afc...Linus Torvalds20 years
v2.6.14-rc4commit 907a426179...Linus Torvalds20 years
v2.6.14-rc3commit 1c9426e8a5...Linus Torvalds20 years
v2.6.14-rc2commit 676d55ae30...Linus Torvalds20 years
v2.6.14-rc1commit 2f4ba45a75...Linus Torvalds20 years
v2.6.13commit 02b3e4e2d7...Linus Torvalds20 years
v2.6.13-rc7commit 0572e3da3f...Linus Torvalds20 years
v2.6.13-rc6commit 6fc32179de...Linus Torvalds20 years
v2.6.13-rc5commit 9a351e30d7...Linus Torvalds20 years
v2.6.13-rc4commit 6395352334...Linus Torvalds20 years
v2.6.11tree c39ae07f39...
v2.6.11-treetree c39ae07f39...
v2.6.12commit 9ee1c939d1...
v2.6.12-rc2commit 1da177e4c3...
v2.6.12-rc3commit a2755a80f4...
v2.6.12-rc4commit 88d7bd8cb9...
v2.6.12-rc5commit 2a24ab628a...
v2.6.12-rc6commit 7cef5677ef...
v2.6.13-rc1commit 4c91aedb75...
v2.6.13-rc2commit a18bcb7450...
v2.6.13-rc3commit c32511e271...
ass="hl opt">, struct pt_regs *regs); static int depca_close(struct net_device *dev); static int depca_ioctl(struct net_device *dev, struct ifreq *rq, int cmd); static void depca_tx_timeout(struct net_device *dev); static struct net_device_stats *depca_get_stats(struct net_device *dev); static void set_multicast_list(struct net_device *dev); /* ** Private functions */ static void depca_init_ring(struct net_device *dev); static int depca_rx(struct net_device *dev); static int depca_tx(struct net_device *dev); static void LoadCSRs(struct net_device *dev); static int InitRestartDepca(struct net_device *dev); static int DepcaSignature(char *name, u_long paddr); static int DevicePresent(u_long ioaddr); static int get_hw_addr(struct net_device *dev); static void SetMulticastFilter(struct net_device *dev); static int load_packet(struct net_device *dev, struct sk_buff *skb); static void depca_dbg_open(struct net_device *dev); static u_char de1xx_irq[] __initdata = { 2, 3, 4, 5, 7, 9, 0 }; static u_char de2xx_irq[] __initdata = { 5, 9, 10, 11, 15, 0 }; static u_char de422_irq[] __initdata = { 5, 9, 10, 11, 0 }; static u_char *depca_irq; static int irq; static int io; static char *adapter_name; static int mem; /* For loadable module assignment use insmod mem=0x????? .... */ module_param (irq, int, 0); module_param (io, int, 0); module_param (adapter_name, charp, 0); module_param (mem, int, 0); MODULE_PARM_DESC(irq, "DEPCA IRQ number"); MODULE_PARM_DESC(io, "DEPCA I/O base address"); MODULE_PARM_DESC(adapter_name, "DEPCA adapter name"); MODULE_PARM_DESC(mem, "DEPCA shared memory address"); MODULE_LICENSE("GPL"); /* ** Miscellaneous defines... */ #define STOP_DEPCA \ outw(CSR0, DEPCA_ADDR);\ outw(STOP, DEPCA_DATA) static int __init depca_hw_init (struct net_device *dev, struct device *device) { struct depca_private *lp; int i, j, offset, netRAM, mem_len, status = 0; s16 nicsr; u_long ioaddr; u_long mem_start; /* * We are now supposed to enter this function with the * following fields filled with proper values : * * dev->base_addr * lp->mem_start * lp->depca_bus * lp->adapter * * dev->irq can be set if known from device configuration (on * MCA or EISA) or module option. Otherwise, it will be auto * detected. */ ioaddr = dev->base_addr; STOP_DEPCA; nicsr = inb(DEPCA_NICSR); nicsr = ((nicsr & ~SHE & ~RBE & ~IEN) | IM); outb(nicsr, DEPCA_NICSR); if (inw(DEPCA_DATA) != STOP) { return -ENXIO; } lp = (struct depca_private *) dev->priv; mem_start = lp->mem_start; if (!mem_start || lp->adapter < DEPCA || lp->adapter >=unknown) return -ENXIO; printk ("%s: %s at 0x%04lx", device->bus_id, depca_signature[lp->adapter], ioaddr); switch (lp->depca_bus) { #ifdef CONFIG_MCA case DEPCA_BUS_MCA: printk(" (MCA slot %d)", to_mca_device(device)->slot + 1); break; #endif #ifdef CONFIG_EISA case DEPCA_BUS_EISA: printk(" (EISA slot %d)", to_eisa_device(device)->slot); break; #endif case DEPCA_BUS_ISA: break; default: printk("Unknown DEPCA bus %d\n", lp->depca_bus); return -ENXIO; } printk(", h/w address "); status = get_hw_addr(dev); if (status != 0) { printk(" which has an Ethernet PROM CRC error.\n"); return -ENXIO; } for (i = 0; i < ETH_ALEN - 1; i++) { /* get the ethernet address */ printk("%2.2x:", dev->dev_addr[i]); } printk("%2.2x", dev->dev_addr[i]); /* Set up the maximum amount of network RAM(kB) */ netRAM = ((lp->adapter != DEPCA) ? 64 : 48); if ((nicsr & _128KB) && (lp->adapter == de422)) netRAM = 128; /* Shared Memory Base Address */ if (nicsr & BUF) { nicsr &= ~BS; /* DEPCA RAM in top 32k */ netRAM -= 32; /* Only EISA/ISA needs start address to be re-computed */ if (lp->depca_bus != DEPCA_BUS_MCA) mem_start += 0x8000; } if ((mem_len = (NUM_RX_DESC * (sizeof(struct depca_rx_desc) + RX_BUFF_SZ) + NUM_TX_DESC * (sizeof(struct depca_tx_desc) + TX_BUFF_SZ) + sizeof(struct depca_init))) > (netRAM << 10)) { printk(",\n requests %dkB RAM: only %dkB is available!\n", (mem_len >> 10), netRAM); return -ENXIO; } printk(",\n has %dkB RAM at 0x%.5lx", netRAM, mem_start); /* Enable the shadow RAM. */ if (lp->adapter != DEPCA) { nicsr |= SHE; outb(nicsr, DEPCA_NICSR); } spin_lock_init(&lp->lock); sprintf(lp->adapter_name, "%s (%s)", depca_signature[lp->adapter], device->bus_id); status = -EBUSY; /* Initialisation Block */ if (!request_mem_region (mem_start, mem_len, lp->adapter_name)) { printk(KERN_ERR "depca: cannot request ISA memory, aborting\n"); goto out_priv; } status = -EIO; lp->sh_mem = ioremap(mem_start, mem_len); if (lp->sh_mem == NULL) { printk(KERN_ERR "depca: cannot remap ISA memory, aborting\n"); goto out1; } lp->mem_start = mem_start; lp->mem_len = mem_len; lp->device_ram_start = mem_start & LA_MASK; offset = 0; offset += sizeof(struct depca_init); /* Tx & Rx descriptors (aligned to a quadword boundary) */ offset = (offset + DEPCA_ALIGN) & ~DEPCA_ALIGN; lp->rx_ring = (struct depca_rx_desc __iomem *) (lp->sh_mem + offset); lp->rx_ring_offset = offset; offset += (sizeof(struct depca_rx_desc) * NUM_RX_DESC); lp->tx_ring = (struct depca_tx_desc __iomem *) (lp->sh_mem + offset); lp->tx_ring_offset = offset; offset += (sizeof(struct depca_tx_desc) * NUM_TX_DESC); lp->buffs_offset = offset; /* Finish initialising the ring information. */ lp->rxRingMask = NUM_RX_DESC - 1; lp->txRingMask = NUM_TX_DESC - 1; /* Calculate Tx/Rx RLEN size for the descriptors. */ for (i = 0, j = lp->rxRingMask; j > 0; i++) { j >>= 1; } lp->rx_rlen = (s32) (i << 29); for (i = 0, j = lp->txRingMask; j > 0; i++) { j >>= 1; } lp->tx_rlen = (s32) (i << 29); /* Load the initialisation block */ depca_init_ring(dev); /* Initialise the control and status registers */ LoadCSRs(dev); /* Enable DEPCA board interrupts for autoprobing */ nicsr = ((nicsr & ~IM) | IEN); outb(nicsr, DEPCA_NICSR); /* To auto-IRQ we enable the initialization-done and DMA err, interrupts. For now we will always get a DMA error. */ if (dev->irq < 2) { unsigned char irqnum; unsigned long irq_mask, delay; irq_mask = probe_irq_on(); /* Assign the correct irq list */ switch (lp->adapter) { case DEPCA: case de100: case de101: depca_irq = de1xx_irq; break; case de200: case de201: case de202: case de210: case de212: depca_irq = de2xx_irq; break; case de422: depca_irq = de422_irq; break; default: break; /* Not reached */ } /* Trigger an initialization just for the interrupt. */ outw(INEA | INIT, DEPCA_DATA); delay = jiffies + HZ/50; while (time_before(jiffies, delay)) yield(); irqnum = probe_irq_off(irq_mask); status = -ENXIO; if (!irqnum) { printk(" and failed to detect IRQ line.\n"); goto out2; } else { for (dev->irq = 0, i = 0; (depca_irq[i]) && (!dev->irq); i++) if (irqnum == depca_irq[i]) { dev->irq = irqnum; printk(" and uses IRQ%d.\n", dev->irq); } if (!dev->irq) { printk(" but incorrect IRQ line detected.\n"); goto out2; } } } else { printk(" and assigned IRQ%d.\n", dev->irq); } if (depca_debug > 1) { printk(version); } /* The DEPCA-specific entries in the device structure. */ dev->open = &depca_open; dev->hard_start_xmit = &depca_start_xmit; dev->stop = &depca_close; dev->get_stats = &depca_get_stats; dev->set_multicast_list = &set_multicast_list; dev->do_ioctl = &depca_ioctl; dev->tx_timeout = depca_tx_timeout; dev->watchdog_timeo = TX_TIMEOUT; dev->mem_start = 0; device->driver_data = dev; SET_NETDEV_DEV (dev, device); status = register_netdev(dev); if (status == 0) return 0; out2: iounmap(lp->sh_mem); out1: release_mem_region (mem_start, mem_len); out_priv: return status; } static int depca_open(struct net_device *dev) { struct depca_private *lp = (struct depca_private *) dev->priv; u_long ioaddr = dev->base_addr; s16 nicsr; int status = 0; STOP_DEPCA; nicsr = inb(DEPCA_NICSR); /* Make sure the shadow RAM is enabled */ if (lp->adapter != DEPCA) { nicsr |= SHE; outb(nicsr, DEPCA_NICSR); } /* Re-initialize the DEPCA... */ depca_init_ring(dev); LoadCSRs(dev); depca_dbg_open(dev); if (request_irq(dev->irq, &depca_interrupt, 0, lp->adapter_name, dev)) { printk("depca_open(): Requested IRQ%d is busy\n", dev->irq); status = -EAGAIN; } else { /* Enable DEPCA board interrupts and turn off LED */ nicsr = ((nicsr & ~IM & ~LED) | IEN); outb(nicsr, DEPCA_NICSR); outw(CSR0, DEPCA_ADDR); netif_start_queue(dev); status = InitRestartDepca(dev); if (depca_debug > 1) { printk("CSR0: 0x%4.4x\n", inw(DEPCA_DATA)); printk("nicsr: 0x%02x\n", inb(DEPCA_NICSR)); } } return status; } /* Initialize the lance Rx and Tx descriptor rings. */ static void depca_init_ring(struct net_device *dev) { struct depca_private *lp = (struct depca_private *) dev->priv; u_int i; u_long offset; /* Lock out other processes whilst setting up the hardware */ netif_stop_queue(dev); lp->rx_new = lp->tx_new = 0; lp->rx_old = lp->tx_old = 0; /* Initialize the base address and length of each buffer in the ring */ for (i = 0; i <= lp->rxRingMask; i++) { offset = lp->buffs_offset + i * RX_BUFF_SZ; writel((lp->device_ram_start + offset) | R_OWN, &lp->rx_ring[i].base); writew(-RX_BUFF_SZ, &lp->rx_ring[i].buf_length); lp->rx_buff[i] = lp->sh_mem + offset; } for (i = 0; i <= lp->txRingMask; i++) { offset = lp->buffs_offset + (i + lp->rxRingMask + 1) * TX_BUFF_SZ; writel((lp->device_ram_start + offset) & 0x00ffffff, &lp->tx_ring[i].base); lp->tx_buff[i] = lp->sh_mem + offset; } /* Set up the initialization block */ lp->init_block.rx_ring = (lp->device_ram_start + lp->rx_ring_offset) | lp->rx_rlen; lp->init_block.tx_ring = (lp->device_ram_start + lp->tx_ring_offset) | lp->tx_rlen; SetMulticastFilter(dev); for (i = 0; i < ETH_ALEN; i++) { lp->init_block.phys_addr[i] = dev->dev_addr[i]; } lp->init_block.mode = 0x0000; /* Enable the Tx and Rx */ } static void depca_tx_timeout(struct net_device *dev) { u_long ioaddr = dev->base_addr; printk("%s: transmit timed out, status %04x, resetting.\n", dev->name, inw(DEPCA_DATA)); STOP_DEPCA; depca_init_ring(dev); LoadCSRs(dev); dev->trans_start = jiffies; netif_wake_queue(dev); InitRestartDepca(dev); } /* ** Writes a socket buffer to TX descriptor ring and starts transmission */ static int depca_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct depca_private *lp = (struct depca_private *) dev->priv; u_long ioaddr = dev->base_addr; int status = 0; /* Transmitter timeout, serious problems. */ if (skb->len < 1) goto out; if (skb_padto(skb, ETH_ZLEN)) goto out; netif_stop_queue(dev); if (TX_BUFFS_AVAIL) { /* Fill in a Tx ring entry */ status = load_packet(dev, skb); if (!status) { /* Trigger an immediate send demand. */ outw(CSR0, DEPCA_ADDR); outw(INEA | TDMD, DEPCA_DATA); dev->trans_start = jiffies; dev_kfree_skb(skb); } if (TX_BUFFS_AVAIL) netif_start_queue(dev); } else status = -1; out: return status; } /* ** The DEPCA interrupt handler. */ static irqreturn_t depca_interrupt(int irq, void *dev_id, struct pt_regs *regs) { struct net_device *dev = dev_id; struct depca_private *lp; s16 csr0, nicsr; u_long ioaddr; if (dev == NULL) { printk("depca_interrupt(): irq %d for unknown device.\n", irq); return IRQ_NONE; } lp = (struct depca_private *) dev->priv; ioaddr = dev->base_addr; spin_lock(&lp->lock); /* mask the DEPCA board interrupts and turn on the LED */ nicsr = inb(DEPCA_NICSR); nicsr |= (IM | LED); outb(nicsr, DEPCA_NICSR); outw(CSR0, DEPCA_ADDR); csr0 = inw(DEPCA_DATA); /* Acknowledge all of the current interrupt sources ASAP. */ outw(csr0 & INTE, DEPCA_DATA); if (csr0 & RINT) /* Rx interrupt (packet arrived) */ depca_rx(dev); if (csr0 & TINT) /* Tx interrupt (packet sent) */ depca_tx(dev); /* Any resources available? */ if ((TX_BUFFS_AVAIL >= 0) && netif_queue_stopped(dev)) { netif_wake_queue(dev); } /* Unmask the DEPCA board interrupts and turn off the LED */ nicsr = (nicsr & ~IM & ~LED); outb(nicsr, DEPCA_NICSR); spin_unlock(&lp->lock); return IRQ_HANDLED; } /* Called with lp->lock held */ static int depca_rx(struct net_device *dev) { struct depca_private *lp = (struct depca_private *) dev->priv; int i, entry; s32 status; for (entry = lp->rx_new; !(readl(&lp->rx_ring[entry].base) & R_OWN); entry = lp->rx_new) { status = readl(&lp->rx_ring[entry].base) >> 16; if (status & R_STP) { /* Remember start of frame */ lp->rx_old = entry; } if (status & R_ENP) { /* Valid frame status */ if (status & R_ERR) { /* There was an error. */ lp->stats.rx_errors++; /* Update the error stats. */ if (status & R_FRAM) lp->stats.rx_frame_errors++; if (status & R_OFLO) lp->stats.rx_over_errors++; if (status & R_CRC) lp->stats.rx_crc_errors++; if (status & R_BUFF) lp->stats.rx_fifo_errors++; } else { short len, pkt_len = readw(&lp->rx_ring[entry].msg_length) - 4; struct sk_buff *skb; skb = dev_alloc_skb(pkt_len + 2); if (skb != NULL) { unsigned char *buf; skb_reserve(skb, 2); /* 16 byte align the IP header */ buf = skb_put(skb, pkt_len); skb->dev = dev; if (entry < lp->rx_old) { /* Wrapped buffer */ len = (lp->rxRingMask - lp->rx_old + 1) * RX_BUFF_SZ; memcpy_fromio(buf, lp->rx_buff[lp->rx_old], len); memcpy_fromio(buf + len, lp->rx_buff[0], pkt_len - len); } else { /* Linear buffer */ memcpy_fromio(buf, lp->rx_buff[lp->rx_old], pkt_len); } /* ** Notify the upper protocol layers that there is another ** packet to handle */ skb->protocol = eth_type_trans(skb, dev);